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World is about 4.5 billion years old. At the beginning its density function is linear. Since the beginning world mass loosing its heat. The heat of the earth is high enough to cause convection currents. Convection currents works like an elevator from center to the surface. This convection currents makes the mass inside earth to move upwards, then downwards ...

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Planets in our solar system have strikingly different chemical compositions - the four rocks closest to the sun (Mercury, Venus, Earth, Mars) have most of their mass made up of rocky and metallic elements (the centre of the Earth is mainly nickel and iron), whereas the gas giants of Jupiter and Saturn are made up of much lighter and simpler elements (mainly ...

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Roughly put, it's the same thing that makes a density step function when you try to combine oil and water: Source The components do not mix with or dissolve into each other, so gravity makes the denser material -- water -- settle to the bottom. The density as a function of height jumps up from the oil density to the water density when you go below the ...

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ANSWER: $h={\Delta}t/{\Delta}l$ $h=$ height of LCL (unit depends on unit height of lapse rates) ${\Delta}t=T-T_d$ ${\Delta}l=l_t-l_d$ $T$ is surface temp (deg) $T_d$ is surface dewpoint temp (deg) ${\Delta}l=$ difference between lapse rates (deg) $l_t=$ dry adiabatic lapse rate of temperature (deg/unit height) $l_d=$ lapse rate of the saturation mixing ratio ...

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Atoms also interact electromagnetically, and this changes their behaviour. In particular, iron will form metallic bonds, while silcon will bond covalently with oxygen forming massive solid structures. On the other hand, Nitrogen will bond to itself forming small molecules that don't link to other molecules. As a result, the iron and silicates will form a ...

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More trees have been planted than ever before with the Arbor Society. Oxygen is the biproduce as plants need carbon dioxide to live(photosynthasis.) Volcanic, platelet fishers and forest fires account for natural carbon dioxide in the atmosphere. Man made fossil fuels are only a small % of carbon dioxide. They do contribute to the % level though.

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